Concealed hinge



Sept. 5, 1933. F. H. SCHWARTZ 1,925,209

CONCEALED HINGE Filed June 18, 1952 Patented Sept. 5, 1933 rUNIITED STATES coNcEALEn HINGE Francis H. Schwartz, Roselle, N. J., assignor to Joseph Soss, Roselle, N..J.

, Application June 18, 1932. Serial No. 617,971

13 Claims.

This invention relates to what are known as concealed hinges employing two butt members countersunk in adjacent surfaces of a stationary support and swinging member with a linkage for coupling the butt members together and for permitting the movement of the swinging member with respect to the stationary support; andthe object of the invention is to provide an improved type of linkage between the butt members of the hinge so as to provide for the quick separation of the butt members in the initial operation of moving the swinging member into openV position for the purposeof clearing the inner corner portions of the stationary support and swinging member and further to permit the mounting of the butt members in the supports in such manner as to leave a heavy or thick wall structure on the inner surfaces thereof (inner, in this sense, referring to the adjacent sides of the butts when in open position) a further object being to provide a linkage for hinges of the class described consisting of two sets of links, one set being pivoted to one butt member and the other set to the other butt member, the free ends of each set being movably supported in the opposed butt member and each set of links being movably coupled centrally thereof by a dual pin and slot construction, one set of links carrying a pin and operating in elongated arc-shaped slots of the other set of links, and the last named set having a pin operating in a slot in the rst named set of links so as to provide the desired movement of the butts with respect to each other; and with these and other objects in view, the invention consists in a hinge of the class and for the purpose specified, which is simple in construction, efficient in use, and which is constructed as hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the Views, and in which:

Fig. l is a side and sectional view of ahinge made according to my invention with the butts in closed position, Y

Fig. 2 is a section on the line 2 2 of Fig. 1, showing the hinge mounted in a stationary support and swinging member.

Fig. 3 is a view-similar to Fig. 2, showing the parts in different position.

Fig. 4 is a View similar to Fig. 2 showing the hinge fully opened and omitting the supports therefor; and,

Fig. 5 is a View similar to Fig. 2 omitting the supports and showing a modification, also indicating'the fully open position of the hinge in dot and dash lines.

.In Figs. 1 to 4 inclusive, I have shown a hinge composed of two butts 10 andll, said butts being of substantially similar ormrand construction and as shown being composed of cast-metal, it being understood, however, that these butts may be composed of sheet metal.

Each butt consists of a U-shaped body portion 16a- 11s, the side arms of which include oppo'- sitely extending ange portions 10e-11b, having screw holes 10c1lc, by means of which the respective butts may be secured to a swinging member 12 and a stationary support 13 as indicated in Figs, 2 and 3 of the drawing, said butts being countersunk in the opposed faces of the supports to be concealed 'when the swinging member or door is in closed position.

Heretofore, in the construction of hinges of the class under consideration, it has lbeen necessary to arrange the side walls 10d, 11d, of the butts adjacent the side surfaces 12a, 13a of the supports so as to permit the free swinging movement of the door or swinging member and prevent the corner portions 12b, 13b from coming in contact with each other. However, with my improved type of hinge forming the subject matvter of this invention, it is possible to centralize the mounting of the Vbutts in the supports or to rarrange said butts well within the side surfaces 12a, 13a of the supports without danger of the corner portions 12b, 13b coming in Contact with each other.

` In practice, I provide an improved linkage for coupling the butt members l0 and 11 together which consists in two sets of links 14 and 15, the

`links 14 being pvotally mounted in the butt 10 on the pin 16, whereas the links 15 are supported 95 on pivotpins 17 in the butts 11. Thefree end of the links 14. carries a bearing pin 18, which as seenv in the construction shown in Figs. 1 to 4 inelusive is adapted to move in elongated slots 19 formed in the opposed` faces of the channel of the butt 11. The links 15 carry a pin 20 which operates in elongated apertures 21 in the butt 10. The sets of .links 14 and 15 are also movably coupled with each other centrally thereof by a double pin and slot construction, one pin 22 be- 105 ving carried by and movable with the links 14 and the other pin 23 is carried by andmovable with thelinks 15. The pin -22 operates in elongated arc-shaped'slots or channels 24 in the links 15 yand the pin 23 operates in corresponding slots or 110 channels 25 in the links 14. The upper end of the pin 22 is headed as seen at 22 and the lower end of the pin 23 corresponding headed as seen at 23a. These heads operate in enlarged portions or" the recesses 24, 25 to maintain the upper and lower links against displacement.

When the hinge is in closed position as seen in Figs. 1 and 2 of the drawing, the pins 22 and 23 will be on the extreme outer ends of the slots or recesses 24 and 25 respectively. In the operation of opening the door or swinging member, the links 14 and 15 while swinging on their pivots 16 and 17 will have a relative sliding movement with respect to each other, bringing the pins 22 and 23 into a position substantially centrally of the slots 24, 25 as seen in Fig. 3 of the drawing. It will be understood that the pins 18 and 20 have also moved outwardly in the slots 19 and 21 so as to actually throw the hinge butt 10 away from the butt 11, providing a wide clearance space between the inner corner portions of the butts as at Fig. 3, so that the corner portions 12b, 13b will clear each other in moving the door or swinging member 12 with respect to the support 13.

As the butt attached to the swinging member 12 continues to move into its fully open position shown in Fig. 4 oi the drawing, the pins 22 and 23 will slide in the slots 24 and 25 to the other ends thereof. I also provide the links 14 and 15 with shoulder portions 26 and 27 respectively which cooperate with the pins 20 and 18 to aid in checking the opening movement of the swinging member in addition to the engagement of the pins 18 and 20 with the ends of the grooves 19 and 21.

It will be noted that the links of the separate sets `14 and l5 are of the same form and construction, and these links are arranged in alternate arrangement with respect to each other with the central enlarged and recessed or apertured portions overlapping as clearly illustrated. At this time, it will be understood that while I have shown a multiplicity of links, that a hinge may be constructed from a single link in each set, and various methods of attaching and coupling the links to the supports or to butt members attached to supports may be made without departing from the spirit of my invention.

In this connection, I have shown in Fig. 5 of the drawing a slight modication wherein two butts 28 and 29 substantially similar to the butts 10 and 11 are employed, and links 30, 31 similar in all respects to the links 14 and 15 having xed pivots 3.2, 33 and movable pivots 34 and 35. 'Ihe latter, instead of operating in elongated slots as in Figs. 1 to 4 inclusive, are supported upon the free ends of links 36 and 37 pivotally mounted in the butts 29 and 28 respectively as seen at 38 and 39. In this connection it will be understood that two of each of the links 36 and 37 may be employed, one at the upper and lower end of each of the pivot pins 34 and 35, or if desired, a number of these links may be employed and spaced between the links 30 and 3l on the pins 34 and 35. The links 30 and 31 also include the pins and 41 and the grooves 42 and 43 similar to the pins and grooves 22, 23, 24 and 25 on the linkage shown in Figs. 1 to 4 inclusive.

It will be understood that other means may be employed for guiding the movable pivots of the respective links or link units, and the means centrally of the link units for movably coupling the same may be modified to suit the different requirements to which the hinge may be applied,

and various other changes in and modifications of the construction herein shown and described may be made within the scope of the appended claims without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In hinges of the class described, two butts, links for movably coupling said butts, one link having a fixed pivot in one butt and the other link a xed pivot in the other butt, means for guiding the free ends of both links in opposed butts, the central portion of said links overlapping, and means involvinU a coupling pin centrally of said links for coupling the same together to permit rela vesliding movement of said links to provide an instantaneous separation of adjacent surfaces of the butts in the opening movement of the hinge.

2. -In hinges of the class described, two butts, links for movably coupling said butts, one link having a xed pivot in one butt and the other link a fixed pivot in the other butt, means for guiding the free ends of both links in opposed butts, the central portion of said links overlapping, means involving a coupling pin centrally of said links for coupling the same together to permit relative sliding movement of said links to provide an instantaneous separation of adjacent surfaces of the butts in the opening movement of the hinge, and said last named means comprising a pin on one link operating in an elongated channel in the other link.

3. In hinges of the class described, two butts, links for movably coupling said butts, one link having a fixed pivot in one butt and the other link a fixed pivot in the other butt, means for guiding the free ends of both links in opposed butts, the central portion of said links overlapping, and means centrally of said links for coupling the same together to permit relative sliding movement of said links to provide an instantaneous separation of adjacent surfaces o1' the butts in the opening movement of the hinge, said last named means comprising pins carried by the central portions of each of said links andoperating in channels of opposed links.

4. In hinges of the class described, two butts, a link system for movably coupling said butts and comprising two sets of links, said link sets having fixed pivots, one in one butt and the other in the other butt, the free ends of said link sets extending into opposed butts, means for guiding said ends in said opposed butts, the central portions of said link sets overlapping and means involving a member mounted in and extending transversely through the overlapped portions of said link sets for coupling the same together and permitting relative sliding movement of said link sets one with respect to the other in the movement of said butts from a closed to an open position.

5. In hinges of the class described, two butts, a linksystem for movably coupling said butts Vand comprising two sets of links, said link sets having fixed pivots, one in one butt and the other in the other butt, the free ends of said link sets extending into opposed butts, means for guiding said ends in said opposed butts, the central portions of said link sets overlapping and means involving a member mounted in and extending transversely through the overlapped portions of said link sets for coupling the same together and permitting relative sliding movement of said link sets one with respect to the other in the movement of said butts from a closed to an open position, and said last named means providing instantaneous separation of adjacent surfaces of the butts in the initial movement of opening said butts.

6. In hinges of the class described, two butts, a link system for movably coupling said butts and comprising two sets of links, said link sets having xed pivots, one in one butt and the other in the other butt, the free ends of said link sets extending into opposed butts, means for guiding said ends in said opposed butts, the central portions of said link sets overlapping and interengaging means on the central portions of the link sets for coupling the same together and permitting relative sliding movement of said link sets one with respect to the other in the movement of said butts from a closed to an. open position, said last named means comprising channels formed in the links ci each set, and pins on the links oi opposed sets operating in said channels for providing the relative sliding movement of said link sets.

7. In -..inges of the class described, two butts, a link system for movably coupling said butts and comprising two sets of links, said link sets having fixed pivots, one in one butt and the other in the other butt, thefree ends of said link sets extending into opposed butts, means for guiding said ends in said opposed butts, the central portions or" said link sets overlapping and interengaging means on the central portions of the link sets for coupling the same together and permitting relative sliding movement of said link sets one with respect to the other in the movement of said butts from a closed to an open position, said last named means comprising channels formed in the links of each set, pins on the links of opposed sets operating in said channels for providing the relative sliding movement of said link sets, and said channels being arc-shaped in form.

8. A link system for coupling two relatively movable parts comprising two sets of links, said link sets having xed pivots, one in one of said parts and the other in the other ,of said parts and a movable pivot in the-opposed part, the central portion of said links overlapping and means including transversely extending members on the overlapping portions of said links cooperating with elongated recesses in opposed links for coupling the same together to permit relative sliding movement ci said links in the movement of said parts one with respect to the other.

9. A link system for coupling two relatively movable parts comprising two sets of links, said link sets having fixed pivots, one in one o1 said parts and the other in the other of said parts and a movable pivot in the opposed part, the central portion of said links overlapping, means on the overlapping portions of said links for coupling the same together to permit relative sliding movement of said links in the movement of said parts one with respect to the other, the links of one set being disposed intermediate those of the other set, and said means comprising channels formed in the links of. each set, and coupling means on the links of opposed sets operating in said channels for controlling the relative movement of said link-sets vwith respect to each other.

l0. A link system for coupling two relatively movable members comprising a link having a fixed pivot in one member and a movable pivot in the other member, a corresponding link having a xedpivot in the last named member and a movable pivot in the first named member, the central portions of said links overlapping, one of said links having an elongated channel centrally thereof and the central portion of the other links having a pin operating in said channel to permit relative sliding movement of said links with respect to each other in the operation of moving said members with respect to each other.

l1. A linkl system for coupling two relatively movable members comprising a link having a nxed pivot in one member and a movable pivot in the other member, a corresponding link having a xed pivot in the last named member and a movable pivot in the nrst named member, the central portions of said links overlapping, one o said links having an elongated channel centrally thereof and the central portion of the other link having a pin operating in said .channel to permit relative sliding movement of said links with `respect to each other in the operation of moving said members with respect to each other, each of said links being composed of a plurality of corresponding link elements forming link units, and the links or one unit being disposed intermediate the links of theopposed unit.

12. In concealed hinges of the class described, a hinge link system for movably coupling two butt members together, means for coupling the link system with the butt members in such manner as to permit relative swinging movement of the butts, and means for coupling the links of said system together in such manner as to provide relative sliding movement ofthe links with respect to each other to provide a wide separation 20 of opposed faces of the butts in the initial opening movement of the hinge.

13. In concealed hinges of the class described, a hinge link system for movably coupling two butt members together, means for coupling the 125 link system with the butt members in such manner as to permit relative swinging movement of the butts, means for coupling the links of said system together in such manner as to provide relative sliding movement of the links with re- 13G spect to each other to provide a wide separation or" opposed faces of the butts in the initial openl-l ing movement of the hinge, said link system comprising two link units, one unit having a fixed pivot in one butt and the other in the other butt, and said last named means comprising pins in each unit cooperating with channels in the links of opposed units. v

FRANCIS H. SCHWARTZ.

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